RE: Best way to drop and recreate and instance?

Hi Mark,

Regarding your problem with dropping a user, I've seen something like that before - this was 817 on Solaris, and the DBA there was getting a ORA-00942 at recursive SQL when trying any CTAS.

I ran a trace on the statement and found that Oracle was looking for a sys.snap$.... table which didn't exist (don't remember the name now). I also found that this database didn't have a single sys.snap$ table while another one on the same release had about 7-8. Later heard from the DBA that they weren't able to get replication working on the database either. Luckily for him, this was a test instance and hence not a serious issue.....but I still never found out why those tables were missing.

I had suggesting recreating the tables from sql.bsq (figured the db was knackered anyway, might as well try it), but I don't think he ever got around to doing it.

I'd be very interested to know if a trace reveals anything to you...

Hope this helps a bit..

Mandar.

-----Original Message-----
Sent: Wednesday, April 24, 2002 6:33 PM
To: Multiple recipients of list ORACLE-L

Never mind all - I "cheated" and used the "Database Configuration Assistant" to drop and create a new one.. ;P

-----Original Message-----
Sent: 24 April 2002 12:53
To: Multiple recipients of list ORACLE-L

Hi All,

I have *finally* got time to drop one of our test instances and recreate it
(tomorrow), and wanted some feedback from all of you as to the best way to
go around this?

The current instance is 8.1.7. on a Win2K machine.. The reason that I'm dropping/recreating (some of you may remember this) is because I simply *CANNOT* drop a user:

sales>connect sys/sys_at_sales
Connected.
sales>select username, password
  2 from dba_users
  3 where username = 'SCOTT';

USERNAME                       PASSWORD
------------------------------ ------------------------------
SCOTT                          F894844C34402B67

sales>drop user scott cascade;
drop user scott cascade
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1 ORA-00942: table or view does not exist

LOL! If anybody has seen this since I last asked the list, and has a solution, please speak up now as this will save me the time of dropping/recreating the instance..

Moving on - what would you consider the best approach to dropping and recreating an instance on a Win32 platform? In the past (as these are purely test instances) I have simply blasted the whole directories (Oracle and all), then deleted any mention of "Oracle" within the registry (after taking a backup of course), and moved on to a completely fresh install (usually to go to a higher version). This time though, I would like to keep 8.1.7 installed on this box, and would prefer to keep Oracle installed, and simply drop and recreate a fresh (empty) instance..

How would you go about doing this?

Advanced thanks.

Mark

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Author: Mandar Shete
  INET: mandar.shete_at_tatainfotech.com

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